Massdrop x Eddie Current ZDT Jr. (Official Thread)

Discussion in 'Headphone Amplifiers and Combo (DAC/Amp) Units' started by Hands, Nov 15, 2017.

  1. RAZRr1275

    RAZRr1275 Almost "Made"

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    Looks like issues is just a stabilizer that got loose. I'm getting an extra with a my SW51 so hopefully it'll be an easy fix and I can compare :) Big ups to @Zampotech for identifying the problem and sending the part with the SW51. I'm not sure if I can repair it for myself since I don't know how to solder but I'm sure someone I know can.
     
    Last edited: Apr 19, 2020
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  2. NonpractisingEE

    NonpractisingEE Rando

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    If you have a multimeter (and promise not to electrocute yourself), I'll help you try to get it working.

    This thread has saved mine 2x. Depending on where you are, I could try some basic troubleshooting too. This thing is a tank and it has been fun to break and fix it.
     
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  3. dumbo

    dumbo Almost "Made"

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    I just had the same issue. Thanks for the info!
     
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  4. NonpractisingEE

    NonpractisingEE Rando

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    I did the replacement too and the front tubes seem brighter/hotter. Is there a voltage or temperature that I should worry about?
     
  5. Zampotech

    Zampotech Friend

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    You need to remove one tube and measure the heater voltage. If measured from above, it will be 4 and 5 pin (count clockwise)
    The constant voltage should be 6.0..6.4 volts.
     
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  6. RAZRr1275

    RAZRr1275 Almost "Made"

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    Hey! Sorry it took so long to get back I don't log into my account here super often. I'm located in NYC
     

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